Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348281 | Skimmer assembly for swimming pools | Stephen J. Perry, William N. Rowley | 1982-09-07 |
| 4338546 | Liquid level detection circuit for control of liquid level responsive device | William N. Rowley, Richard E Mullen | 1982-07-06 |